Air abrasive technique을 이용한 복합레진 수복 증례
TREATMENT OF COMPOSITE RESIN RESTORATION WITH THE AIR ABRASIVE TECHNIQUE
이창우, 장기택, 이상훈, 한세현,
소속 상세정보
이창우 ( ) - 서울대학교 치과대학 치학연구소
장기택 ( ) - 서울대학교 치과대학 치학연구소
이상훈 ( ) - 서울대학교 치과대학 치학연구소
한세현 ( ) - 서울대학교 치과대학 치학연구소
KMID : 0358919970240040763
Abstract
결론
저자는 서울대학교병원 소아치과에 내원한 환아를 대상으로 Air Abrasive Technique을 시
행하여 다음과 같은 결론을 얻었다.
1. Air Abrasive 기구의 치아 preparation수행 능력은 제조 회사에 따라 큰 차이가 있었다.
2. 이미 우식증이 진행되어 soft dentin이 존재하는 부위보다는 초기 우식증이나 착색 등의
치료에 아주 효과적이었다.
3. cold stream, evacuation system에서 생성되는 소음과 치아 표면에 충돌한 후 rebound
되는 alpha alumina 입자 등이 소아 환자에게 불편함을 주는 주요한 원인이었다.
4. Air Abrasive Technique을 사용해 치아 삭제시 치아표면과의 직접적인 접촉이 없으므
로 적절한 삭제를 위해서는 많은 경험과 숙련성이 요구된다.
#초록#
The air abrasive technique is a non-mechanical method by which teeth are treated
before restoration and stains and calculi are removed from tooth surfaces using the
kinetic energy of small particles. The air abrasive technique in dentistry was first
introduced in the 1950's with as instrument called 'Airdent'. But, as the main
restorative materials of the period were amalgam and gold, and the instrument's
inability to control the flow of particles caused the particles to be spread throughout the
clinics, widespread use was not possible.
In the 1990's, as these technical problems were solved and more interest in new
restorative materials rose in an effort to preserve sound tooth structure, new
developments took place in instruments related to the air abrasive technique.
The air abrasive technique produces less pressure, vibration and heat that might cause
patient discomfort and facilitates the preservation of sound tooth structure. It also
reduces the need for anesthesia and is less harmful to the pulp. Other advantages
include increase in dentin bonding strength of composite resin, lower possibility of saliva
contamination and maintenance of a dry field. But there is not direct contact between
the nozzle and the tooth, the operator cannot use his or her tactile sense and must rely
solely upon visual input. Other disadvantages are : the tooth preparation depends on the
operator's ability ; alpha-alumina particles, after bouncing of off the tooth surface, cause
damage to dental mirrors ; the equipment is expensive and takes up a certain amount of
space in the clinic.
The author conducted case report using the air abrasive technique on patient visiting
the Department of Pediatric Dentistry at Seoul National University Dental Hospital and
arrived at the following conclusions.
1. The tooth preparation capability of different air abrasive devices varied widely
among manufacturers.
2. It was more effective in treating early caries lesions and stains compared to lesions
where caries had already progressed to produce soft dentin.
3. The cold stream and noise caused by the evacuation system was a major cause of
discomfort to pediatric patients.
4. As there is no direct contact with tooth surface when using the air abrasive
technique for tooth preparation, considerable experience and skill is required for proper
tooth preparation.
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